2017 TOYOTA PRIUS V Owners Manual

PRIUS v_OM_OM47B23U_(U)
2254-5. Using the driving support systems
4
Driving
WARNING
■Before using dynamic radar cruise control
Do not overly rely on vehicle-to-vehicle distance control.
Be aware of the set speed. If automatic deceleration/acceleration is not
appropriate, adjust the vehicle speed, as well as the distance between your
vehicle and vehicles ahead by applying the brakes etc.
■ Cautions regarding the driving assist systems
Observe the following precautions.
Failure to do so may cause an accident resulting in death or serious injury.
●Assisting the driver to measure following distance
The dynamic radar cruise control is only intended to help the driver in
determining the following distance between the driver’s own vehicle and a
designated vehicle traveling ahead. It is not a mechanism that allows care-
less or inattentive driving, and it is not a system that can assist the driver in
low-visibility conditions. It is still necessary for driver to pay close attention
to the vehicle’s surroundings.
● Assisting the driver to judge proper following distance
The dynamic radar cruise control determines whether the following dis-
tance between the driver’s own vehicle and a designated vehicle traveling
ahead is appropriate or not. It is not capable of making any other type of
judgement. Therefore, it is absolutely necessary for the driver to remain
vigilant and to determine whether or not there is a possibility of danger in
any given situation.
● Assisting the driver to operate the vehicle
The dynamic radar cruise control has no capability to prevent or avoid a
collision with a vehicle traveling ahead. Therefore, if there is ever any dan-
ger, the driver must take immediate and direct control of the vehicle and
act appropriately in order to ensure the safety of all involved.
■ To avoid inadvertent cr uise control activation
Switch the cruise control off using the “ON-OFF” button when not in use.

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PRIUS v_OM_OM47B23U_(U)
4-5. Using the driving support systems
WARNING
■Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise control in any of the following situations.
Doing so may result in inappropriate speed control and could cause an acci-
dent resulting in death or serious injury.
●Except on highways or expressways
● In heavy traffic
● On roads with sharp bends
● On winding roads
● On slippery roads, such as those covered with rain, ice or snow
● On steep downhills, or where there are sudden changes between sharp up
and down gradients
Vehicle speed may exceed the set speed when driving down a steep hill.
● At entrances to expressways
● When weather conditions are bad enough that they may prevent the sen-
sors from functioning correctly (fog, snow, sandstorm, heavy rain, etc.)
● When an approach warning buzzer is heard often
■ When the sensor may not be correct ly detecting the vehicle ahead
Apply the brakes (or accelerator pedal) as necessary when any of the fol-
lowing types of vehicles are in front of you.
As the sensor may not be able to correctly detect these types of vehicles,
the approach warning ( P. 221) will not be activated, and a fatal or serious
accident may result.
● Vehicles that cut in suddenly
● Vehicles traveling at low speeds
● Vehicles that are not moving in the same lane
● Vehicles with small rear ends (trailers with no load on board etc.)
● Motorcycles traveling in the same lane
● When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor

PRIUS v_OM_OM47B23U_(U)
2274-5. Using the driving support systems
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Driving
WARNING
■Conditions under which the vehicle-to-vehicle distance control may
not function correctly
Apply the brakes (or accelerator pedal) as necessary in the following condi-
tions as the radar sensor may not be able to correctly detect vehicles
ahead, and a fatal or serious accident may result:
● When the vehicle ahead of you decelerates suddenly
●When your vehicle is pointing upwards
(caused by a heavy load in the luggage
compartment, etc.)
●When the road curves or when the
lanes are narrow
● When steering wheel operation or your
position in the lane is unstable
Accelerate
Accelerate
Decelerate

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PRIUS v_OM_OM47B23U_(U)
4-5. Using the driving support systems
WARNING
■Handling the radar sensor
Observe the following to ensure the cruise control system can function
effectively.
Otherwise, the system may not function correctly and could result in an
accident.
●Keep the sensor and grille cover clean at all times.
Clean the sensor and grille cover with a soft cloth so you do not mark or
damage them.
● Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may become
inaccurate or malfunction. If the sensor or surrounding area is subject to a
strong impact, always have the area inspected and adjusted by a Toyota
dealer.
● Do not disassemble the sensor.
● Do not attach accessories or stickers to the sensor, grille cover or sur-
rounding area.
● Do not modify or paint the sensor and grille cover.
● If the sensor needs to be replaced, contact your Toyota dealer.

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PRIUS v_OM_OM47B23U_(U)
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4
Driving
LDA (Lane Depar ture Alert)
While driving on a road that has la ne markers, this system recognizes
the lane markers using a camera as a sensor to alert the driver when
the vehicle deviated from its lane. If the system judges that the vehicle
has deviated from its lane, it alerts the driver using a buzzer and indi-
cations on the multi-information display.
Camera sensor
Display
Indicator
LDA switch
: If equipped
Summary of function
1
2
3

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When the system judges that the vehicle is deviating from the current
traffic lane, an alert buzzer sounds and it prompts cautions from the
display screen of the multi-information display.
When the alert buzzer sounds, please check the surrounding road situa-
tion and return near the center of the white (yellow) lane markers by safely
operating the steering wheel.
Press the LDA switch to activate
the LDA.
LDA indicator will come on and
lane lines will be displayed on the
multi-information display.
Press the switch again to deacti-
vate the LDA.
The LDA will remain on or off even
if the power switch is turned off.
Lane departure alert function
Alert buzzer
Turning the LDA on

PRIUS v_OM_OM47B23U_(U)
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Driving
When the following conditions are sa tisfied, the function operates.
When the lane departure alert function operates, lane lines is dis-
played on the multi-information display. ( P. 232)
● When the LDA is on. ( P. 230)
● When the vehicle speed is approximately 32 mph (50 km/h) or
more.
● When the system recognizes white (yellow) lane markers.
● When the lane width is more than approximately 8.2 ft. (2.5 m).
● When turn signal lever is not operating.
● When driving on a straight road or through a curve with a radius of
more than approximately 328 ft. (100 m)
● When a system abnormality is not detected. ( P. 233)
In any of the following cases, the lane departure alert function will be
temporarily canceled. When the cond itions, in which the cancelation
occurred improves, the functi on will resume operations.
● The vehicle speed deviates from the operating ranges of the func-
tion
● The turn signal lever is operated
● When the lane markers cannot be recognized while driving
● Immediately after the lane departure alert operates
The lane departure alert function w ill not operate again for a several
seconds after it has been activated, even if the vehicle leaves the
lane again.
Operating conditions for the function
Temporary cancelation of the function

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When the inside of both lane lines
turn white:
Indicates that both right and left
lane markers are recognized.
If the vehicle deviates from the traf-
fic lane, the lane display on the
side the vehicle has deviated from
will flash in amber. ( P. 230)
When the inside of either lane line
turns white:
Indicates that the lane marker on
the white-marked side is recog-
nized.
If the vehicle deviates from the side
of a lane with recognized lane
markers, the lane line will flash in
amber. (P. 230)
When the inside of both lane lines
are black:
Indicates that no lane markers are
recognized or the LDA is tempo-
rarily canceled.
Indication on the multi-information display